Cafeteria food holder (4)
I believe the answer is:
tray
'cafeteria food holder' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tray that I've seen before include "Flat utensil for carrying food" , "Domestic carrier" , "canteen item" , "Flat board for carrying things" , "Flat surface for carrying things" .)